The reaction to Williams' August death topped Google's list of 2014's fastest-rising search requests released Tuesday. It topped notable events such as the World Cup, the Ebola outbreak, the March disappearance of Malaysia Airlines Flight 370 and the Ice Bucket Challenge, an Internet video craze to raise awareness and money for amyotrophic lateral sclerosis, or ALS.

Other topics included the addictive smartphone game "Flappy Bird," bearded drag queen Conchita Wurst, the Middle East extremist group ISIS, the hit Disney movie "Frozen," and the Winter Olympics in Russia.

Williams, Ebola, the World Cup and the Ice Bucket also ranked among the most-discussed subjects this year on Facebook, which released its list last week.